M365, Identity Engineer
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Job Description
M365 and identity engineer designing and securing Microsoft 365, Entra ID, Okta, and hybrid identity environments for Amentum’s engineering and technology operations.
Responsibilities:
- Design, implement, and maintain Microsoft 365 services including Exchange Online, Purview, OneDrive, and Teams
- Provide secondary support for SharePoint Online, Power BI, Power Platform, and related services
- Manage Entra ID identity services, including Conditional Access, External Identities (B2B), MFA, SSO integrations, and identity lifecycle processes
- Manage Okta and other company identity platforms
- Support company email service platforms, including Microsoft Exchange 2016/SE, Exchange Online, and Proofpoint
- Develop and enforce M365 governance, security policies, and compliance configurations
- Troubleshoot and resolve complex issues across the M365 ecosystem, identity platform, and hybrid environments
- Administer and enhance IAM tools and workflows, including provisioning, deprovisioning, RBAC, and privileged access management
- Implement automation using PowerShell or other scripting tools
- Monitor system performance, security posture, and capacity to ensure high availability and reliability
- Partner with security, data center, and application teams on integration and cross-functional initiatives
- Provide technical expertise during audits, risk assessments, and incident response activities
- Create and maintain technical documentation, diagrams, and standard operating procedures
- Perform other duties as assigned
Requirements:
- Typically, 5+ years of hands-on experience with M365 administration and engineering
- Bachelor's degree in Computer Science, Information Technology, or another related field
- Experience in Identity & Access Management in enterprise environments
- Experience with Active Directory, Entra ID, External Identities (B2B), Conditional Access, RBAC, MFA, and identity lifecycle management
- Experience supporting hybrid identity, including On-Premises Exchange, Entra ID Connect, federation, and sync
- US Citizenship is required
- Proficiency with PowerShell and scripting for administration and automation
- In-depth understanding of Microsoft 365 security, compliance, and governance tools, including Purview, Defender, and DLP
- Solid knowledge of Exchange Online, Purview, SharePoint Online, Teams administration, and related services
- Okta experience preferred
- Microsoft certifications such as MS-102, SC-300, SC-100, or AZ-104 preferred
- Experience with Zero Trust frameworks and modern identity practices preferred
- Knowledge of identity governance solutions, including Okta preferred
- Familiarity with endpoint management (Intune) is a plus
- Experience creating automation workflows using Graph API or Power Automate preferred
Benefits:
- Health, dental, and vision insurance
- Paid time off and holidays
- Retirement benefits, including 401(k) matching
- Educational reimbursement
- Parental leave
- Employee stock purchase plan
- Tax-saving options
- Disability and life insurance
- Pet insurance
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